The Government will act now that the Big Six has not listened to my warning about cutting their unfair bills

Yet, right now, millions of loyal customers — particularly older people and those on low incomes — are stuck on poor-value standard variable tariffs, leaving them with bills that are much higher than they need to be.

This is wrong, and The Sun deserves great credit for its campaign to get this changed.

This overcharging costs consumers with the Big Six energy suppliers £1.4billion a year.

This is not fair for hard-pressed, hard-working Sun readers who are just about managing to get by.

A price cap will be in place by next winter to protect the loyal customers who are being punished for sticking with the same supplier

Last year I told suppliers that if they didn’t cut unfair bills I would act to make them.

They haven’t, so on Monday the Government is introducing legislation that will make energy companies change their ways.

I have been clear the new cap should be in place for next winter, helping protect the 11million bill-payers being charged hundreds more for loyally sticking with their supplier.

We’re also committed to bringing down the cost of energy further by increasing competition, making it quicker and easier to change supplier when you find a deal that’s right for you, and rolling out digital smart meters that let you see exactly how much you’re spending in real time.